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Ultrathin FeOOH Nanolayers with Abundant Oxygen Vacancies on BiVO4 Photoanodes for Efficient Water Oxidation
Abstract
Photoelectrochemical (PEC) water splitting is a promising method for storing solar energy in the form of hydrogen fuel, but it is greatly hindered by the sluggish kinetics of the oxygen evolution reaction (OER). Herein, a facile solution impregnation method is developed for growing ultrathin (2 nm) highly crystalline β‐FeOOH nanolayers with abundant oxygen vacancies on BiVO 4 photoanodes. These exhibited a remarkable photocurrent density of 4.3 mA cm−2 at 1.23 V (vs. reversible hydrogen electrode (RHE), AM 1.5 G), which is approximately two times higher than that of amorphous FeOOH fabricated by electrodeposition. Systematic studies reveal that the excellent PEC activity should be attributed to their ultrathin crystalline structure and abundant oxygen vacancies, which could effectively facilitate the hole transport/trapping and provide more active sites for water oxidation.
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Cites
Bao, J., Zhang, X., Fan, B., Zhang, J., Zhou, M., Yang, W., Hu, X., Wang, H., Pan, B., & Xie, Y. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201502226 · Cited by 1,428
Cited by
Fe-Based Electrocatalysts for Oxygen Evolution Reaction: Progress and Perspectives
Feng, C., Faheem, M. B., Fu, J., Xiao, Y., Li, C., & Li, Y. (2020) · ACS Catalysis · doi:10.1021/acscatal.9b05445 · Cited by 587
Li, C.-F., Zhao, J.-W., Xie, L.-J., Wu, J.-Q., & Li, G.-R. (2021) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2021.119987 · Cited by 294
Tian, X., Wang, Y., Zeng, Z., Dai, L., Xu, J., Cobb, K., Ke, L., Zou, R., Liu, Y., & Ruan, R. (2022) · Green Chemistry · doi:10.1039/d1gc04537g · Cited by 128
Wang, H., Feng, E.-M., Liu, Y.-M., & Zhang, C.-Y. (2019) · Journal of Materials Chemistry A · doi:10.1039/c9ta00878k · Cited by 98
Metadata
- Authors
- Zhang, B., Wang, L., Zhang, Y., Ding, Y., & Bi, Y.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2018-02
- Volume
- 57
- Issue
- 8
- Pages
- 2248-2252
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2784011757
- Cited by
- 768
- References
- 1
- FWCI
- 19.34
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, B., Wang, L., Zhang, Y., Ding, Y., & Bi, Y. (2018). Ultrathin FeOOH Nanolayers with Abundant Oxygen Vacancies on BiVO4 Photoanodes for Efficient Water Oxidation. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201712499
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